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Open Compute Project Hardware
Built for Open Compute Project (OCP) environments, the Legrand OCP Rack & Power System delivers scalable, high-efficiency infrastructure for data centers and mission-critical facilities, purpose-built for AI, HPC, and ultra-high-density workloads.
What is Open Compute?
Open Compute refers to an open, collaborative approach to designing and deploying data center hardware that improves efficiency, scalability, and interoperability. The meaning of Open Compute is rooted in creating standardized, flexible infrastructure that enables organizations to rapidly scale and optimize modern compute environments.
While Legrand's primary focus within the Open Compute Project is rack and power infrastructure, our broader portfolio includes data center solutions that integrate seamlessly into OCP deployments.
The Legrand OCP Server Rack & Power System:
- Delivers scalable, high-efficiency infrastructure for data centers and mission-critical facilities.
- Features a modular, interchangeable architecture that integrates resilient power distribution, peak energy efficiency, intelligent management, and real-time monitoring.
- Maximizes uptime and operational visibility through advanced monitoring and infrastructure management capabilities.
- Leverages interchangeable rack and power building blocks to enable rapid deployment and seamless scalability.
- Allows data centers to adapt quickly to evolving Open Rack compute requirements and changing capacity needs.
Why choose Legrand for your OCP rack & power application?
- Built for OCP Scale – Modular, interchangeable designs enable rapid scaling and reconfiguration.
- Proven Performance – Legrand brands are trusted by all 10 of the top 10 hyperscale data centers.
- Innovative Leadership – With a market-leading portfolio, Legrand holds the most industry patents in power distribution and connectivity.
- Tailored Solutions – Precision engineering to meet your exact specifications.
- Deep Expertise – A lengthy record of success designing and deploying scalable, resilient infrastructure.
- Global Technical Support – Our global support network ensures dedicated professionals back Legrand solutions.
- Quality You Can Depend On – ISO-aligned manufacturing and engineering ensure quality, safety, and efficiency.
OCP POWER SHELVES
Legrand’s ORv3 HPR power shelves provide centralized, high-efficiency AC-to-DC power conversion for OCP racks, delivering reliable 50V DC power to vertical busbars and IT equipment. The standardized ORv3 architecture simplifies integration in OCP Open Rack environments. Modular, front-serviceable designs, a blind- mate quick connector, and built-in redundancy improve uptime and reduce operational complexity in ORv3 deployments.
Legrand's ORV3 1RU HPR power shelf delivers a continuous 33kW with hot-swappable 5.5kW PSUs. It supports 3Φ-Y ORv3 inputs and provides N+1 redundancy with active current sharing. Features include hot-swappable PSUs and PMC, a PoE networking port, a Redfish API for OCP, and plug-and-play connectivity to Legrand's SmartSensors for physical and environmental monitoring.
Legrand's ORv3 2RU HPR power shelf delivers a continuous 33kW with hot-swappable 5.5kW PSUs. It supports 3Φ-Δ and 3Φ-Y ORv3 inputs and provides N+1/N+N redundancy with active current sharing. Features include AC Cx outlets, hot-swappable PSUs and PMC, advanced power quality monitoring, a Redfish® API for OCP, and plug-and-play connectivity to Legrand's SmartSensors for physical and environmental monitoring.
0U AC RACK PDU with POWER SHELF DISTRIBUTION
Legrand’s 0U AC vertical PDU provides AC power distribution in an Open Compute Rack environment and is rack-mounted, using no horizontal space. This engineer-to-order PDU design features dual 380–415V 3Φ-Y 60/63A inputs, 4 ORv3 17kW 3Φ universal output cord options, and 6 AC Cx outlets with branch protection. A hot-swappable controller with Gigabit Ethernet, Redfish API, and interoperability enables flexible monitoring and management. This PDU provides additional AC outlets for devices in the cabinet that are not DC-powered.
0U AC FUSED RACK PDU
Legrand’s 0U AC Fused PDU provides AC power distribution in an Open Compute Rack environment, delivering power to the vertical busbar. Its integrated fuses help protect the rack infrastructure from overcurrent conditions. This engineer-to-order PDU design accepts 380–415V 3Φ-Y input and provides 220–240V output to 6 AC Cx outlets with branch protection. A hot-swappable controller with Gigabit Ethernet, Redfish API, and interoperability enables flexible monitoring and management. This PDU provides additional AC outlets for devices in the cabinet that are not DC-powered.
OCP RACK AND VERTICAL DC BUSBARS
Our OCP-compliant racks and ORv3 vertical DC busbars provide efficient and scalable power and space optimization for modern data centers. The open rack design enhances airflow, while the integrated busbar ensures safe and simplified DC power distribution—reducing cabling, lowering costs, and supporting growing workloads.
The OCP Rack combines the latest specifications with customization, strength, and quality. Compatible with all Open Rack IT systems. Bespoke configuration can support a 5,000 lb. capacity with 21-inch OU and/or 19-inch RU hardware, and dimensions up to 54 inches deep, 31.5 inches wide, and 48OU/52RU high.
Legrand's vertically mounted ORv3 DC busbars include the 400A, 700A, 1400A, and liquid-cooled 5000A models. All models distribute high-current DC power from an ORv3 power shelf to ORv3 rack equipment. They enable direct, low-loss power delivery while reducing cabling complexity and improving airflow within the rack. Their value lies in their DC power distribution, improved scalability, and faster OCP Open Rack deployments.
COOLING
Our rear door heat exchangers provide efficient, rack-level cooling for high-density data centers. Mounted directly to the back of the rack, they use chilled water to remove heat at the source, reducing reliance on traditional CRAC units, improving energy efficiency, and supporting today’s demanding workloads.
USystems ColdLogik RDHx is an efficient, scalable, and sustainable air-assisted liquid cooling solution for OCP environments. Operating on a closed-loop water circuit with warm or cold supply, it delivers up to 200 kW per rack of autonomous thermal management. Available in multiple sizes, it is retrofit ready for both OEM and custom racks.
Legrand has partnered with Accelsius to offer two-phase direct-to-chip cooling for ultradense AI and hyperscale environments. Using a dielectric refrigerant, it removes heat more efficiently than single-phase systems, supporting 4,500W per socket and up to 250kW per rack with future-ready scalability.
OVERHEAD POWER DISTRIBUTION
Track busway systems deliver flexible, overhead power distribution for modern data centers. By replacing traditional cabling with a modular busway, they simplify installation, improve scalability, and ensure reliable, efficient power delivery to every rack—supporting growth while reducing costs and complexity.
Delivering flexible, scalable power distribution for any OCP Open Rack environment, Starline’s portfolio includes continuous access track busway and enclosed busduct solutions from 250A to 6300A, supporting up to 600V AC and 1000V DC. From the 2000A T5 DoubleBar and 250A High-Capacity Plug-In Units (HCP) for high-density rack deployments to enclosed busduct systems up to 63000A, these solutions are designed to support evolving power demands with multi-circuit, seismic, IP2X, and IP54 options.
OOB Management
ZPE System’s serial routers and consoles provide secure out-of-band management for critical IT equipment. They centralize access to servers, switches, and power systems, ensuring visibility and control even when the main network is down. With high-density connectivity, automation support, and seamless rack integration, they help reduce downtime and simplify operations.
Legrand’s ZPE Systems Nodegrid Net Services Router is an all-in-one platform for access and control. Its modular Gen 3 out-of-band connectivity options support a wide range of control and access capabilities, including Redfish, Serial Console, OCP debug, and more. The platform enables workflow automation, enterprise-grade security, remote OCP server management, performance optimization, and streamlined operations.
Legrand’s ZPE Systems’ Nodegrid Serial Console Plus provides reliable remote access to critical equipment, even during network outages. This 1RU console supports up to 96 devices with Gen 3 out-of-band serial connectivity and built-in 5G and Wi-Fi. Designed to centralize the management of servers, switches, PDUs, and other network equipment, Nodegrid Serial Console Plus helps reduce downtime and accelerate troubleshooting, all with built-in enterprise-grade security.
RARITAN DOMINION KX III G2
Legrand’s Raritan Dominion KX III G2 is a KVM-over-IP switch, designed for modern IT infrastructure. It offers unmatched flexibility and interoperability, enabling BIOS-level access from anywhere. With low bandwidth use, high-performance video, and robust encryption, it ensures secure and efficient remote management. Whether you are managing 8 or 96 servers, Dominion KX III G2 scales effortlessly to meet your remote access needs.
OCP ENVIRONMENTAL MONITORING
Comprehensive environmental monitoring helps data center operators maintain the conditions required for peak performance in OCP Open Rack deployments.Real-time visibility into white space environmental conditions and rack-access events enable operators to proactively identify risks and reduce downtime, ensuring reliable operations at scale.
Legrand's ORv3 1RU Smart Rack Controller provides an intelligent sensor management solution that serves as a central hub for Legrand's environmental and security SmartSensors and SmartLock systems in OCP ORv3 Open Racks. Its modular, front-serviceable design, multiple interface ports, and blind-mate quick connector accelerate deployments and reduce operational complexity.
Legrand's environmental monitoring SmartSensors monitor key environmental conditions affecting OCP racks, including airflow, dust/particles, temperature, humidity, and differential air pressure.
Water in an OCP Open Rack typically comes from leaks, condensation, or infrastructure failures. Legrand's water detection SmartSensors monitor and detect the presence of water, glycol-water coolant mixtures, or other water-based fluids. In open OCP rack designs, even a small leak can spread quickly—real-time monitoring ensures rapid detection and containment.
Legrand's physical access and security SmartSensors provide continuous monitoring of areas surrounding IT equipment and include dry contact, contact closure, proximity/motion, tamper, and vibration sensors, which are of concern for high-density OCP racks.
Get The Latest Firmware and Support
Access the latest documentation, firmware, and technical support to maximize the performance and reliability of your OCP ORv3 Power System.
Data, Power, and Control Brands
